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Simulation of a Geiger-Mode Imaging LADAR System for Performance Assessment
Department of Geoinformatics, University of Seoul, 90 Jeonnong-dong, Dongdaemun-gu, Seoul 130-743, Korea
Defense Advanced R&D Center, Agency for Defense Development, Yuseong P.O. Box 35-41, Daejon 350-600, Korea
* Author to whom correspondence should be addressed.
Received: 6 May 2013; in revised form: 28 June 2013 / Accepted: 28 June 2013 / Published: 3 July 2013
Abstract: As LADAR systems applications gradually become more diverse, new types of systems are being developed. When developing new systems, simulation studies are an essential prerequisite. A simulator enables performance predictions and optimal system parameters at the design level, as well as providing sample data for developing and validating application algorithms. The purpose of the study is to propose a method for simulating a Geiger-mode imaging LADAR system. We develop simulation software to assess system performance and generate sample data for the applications. The simulation is based on three aspects of modeling—the geometry, radiometry and detection. The geometric model computes the ranges to the reflection points of the laser pulses. The radiometric model generates the return signals, including the noises. The detection model determines the flight times of the laser pulses based on the nature of the Geiger-mode detector. We generated sample data using the simulator with the system parameters and analyzed the detection performance by comparing the simulated points to the reference points. The proportion of the outliers in the simulated points reached 25.53%, indicating the need for efficient outlier elimination algorithms. In addition, the false alarm rate and dropout rate of the designed system were computed as 1.76% and 1.06%, respectively.
Keywords: ladar; lidar; laser radar; imaging; flash ladar; Geiger mode; FPA; GmAPD; GmFPA; range gated; sensor model; simulation; performance assessment
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MDPI and ACS Style
Kim, S.; Lee, I.; Kwon, Y.J. Simulation of a Geiger-Mode Imaging LADAR System for Performance Assessment. Sensors 2013, 13, 8461-8489.
Kim S, Lee I, Kwon YJ. Simulation of a Geiger-Mode Imaging LADAR System for Performance Assessment. Sensors. 2013; 13(7):8461-8489.
Kim, Seongjoon; Lee, Impyeong; Kwon, Yong J. 2013. "Simulation of a Geiger-Mode Imaging LADAR System for Performance Assessment." Sensors 13, no. 7: 8461-8489.